Document Detail

Alpha-1-antitrypsin in umbilical cord serum: pi phenotypes and relationships with idiopathic respiratory distress syndrome.
MedLine Citation:
PMID:  304806     Owner:  NLM     Status:  MEDLINE    
The concentrations and phenotypes of serum alpha-1-antitrypsin (alpha1AT) were determined in 650 newborn infants. The distribution of these 650 subjects among the various Pi phenotypes confirms the higher frequency reported for the PiS allele in Latin populations. Serum alpha1AT levels vary between one phenotype and the other. Besides, at birth, infants weighing more than 2,500 g have alpha1AT levels significantly higher (P less than 0.001) than infants weighing less than 2,500 g; this difference in serum alpha1AT concentrations is due to the low alpha1AT levels found in preterm infants. The significantly lower alpha1AT concentrations found in preterms is associated with a higher risk of developing IRDS and with a mean birth weight under 2,000 g. Infants who develop IRDS frequently have lower alpha1AT levels than those who do not develop the syndrome, independently from body weight. On the basis of serum alpha1AT quantitation, newborn infants may be separated into two groups, characterized respectively by concentrations above or below 150 mg%. From our data, it appears that if the group with an alpha1AT concentration lower than 150 mg% is phenotyped, it is possible to differentiate infants with a high risk of fatal IRDS from individuals with a "pathological" phenotype.
M Piantelli; R Pozzuoli; P Auconi; P Musiani
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  European journal of pediatrics     Volume:  127     ISSN:  0340-6199     ISO Abbreviation:  Eur. J. Pediatr.     Publication Date:  1978 Jan 
Date Detail:
Created Date:  1978-04-26     Completed Date:  1978-04-26     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7603873     Medline TA:  Eur J Pediatr     Country:  GERMANY, WEST    
Other Details:
Languages:  eng     Pagination:  101-9     Citation Subset:  IM    
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MeSH Terms
Birth Weight
Gene Frequency*
Infant, Newborn
Respiratory Distress Syndrome, Newborn / enzymology*
Umbilical Cord
alpha 1-Antitrypsin / blood*
Reg. No./Substance:
0/alpha 1-Antitrypsin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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